Centralize recording for up to 32 IP cameras with 4K recording support and local storage across four HDD bays. The UNITED DIGITAL NVR504-32B-P16 is a Uniview network video recorder for security systems that need more camera capacity than a small edge recorder while retaining recorder-side PoE connectivity for directly attached cameras. Sixteen built-in PoE ports provide power and network connectivity from the recorder to compatible IP cameras. This arrangement suits camera groups located near the equipment room, such as entrances, loading areas, corridors, parking coverage, and interior common spaces. Cameras beyond the 16 direct PoE connections can be integrated through the surveillance network, allowing the recorder to support its full 32-camera capacity without requiring every camera to home-run to the NVR chassis. Four HDD bays separate this platform from lower-capacity recorder configurations with fewer internal drive positions. The additional bays provide the storage architecture needed when retention requirements increase with camera count, recording resolution, or continuous recording schedules. Use the NVR504-32B-P16 where a single recorder must consolidate a 32-camera Uniview deployment, supply PoE to a substantial local camera group, and maintain on-site video storage in a dedicated network video recorder.